Hi,
We still have a big memory leak with the 3.5.15. We have to restart the whole cluster every week.
It seems to be related to our heavy usage of UDF.
Memory usage in attachment. The data size in cluster is quite constant during the same period of time (around 5GB of data). We have three dedicated node.
I will be happy to provide all needed informations.
See also Memory usage/ leak (bug)